Program to find area and circumference of circle

/*Program to find area and circumference of circle*/

#include<conio.h>

#include<stdio.h>

void main()

{

      float r,area,cir;

      clrscr();

      printf("enter radius of a circle:");

      scanf("%f",&r);

      area=3.14*r*r;

      cir=2*3.14*r;

      printf("area=%f\m*mncircumference=%f m",area,cir);

      getch();

}

Output: enter radius of a circle: 3

             Area=28.26m*m

            Circumference= 18.84m